/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.spark.expose

import java.io.File

import ai.h2o.sparkling.utils.SparkSessionUtils
import org.apache.spark.SparkConf
import org.apache.spark.scheduler.SparkListenerEvent
import org.apache.spark.util.{ShutdownHookManager, Utils => SparkUtils}

object Utils {
  def createTempDir(root: String = System.getProperty("java.io.tmpdir"), namePrefix: String = "spark"): File = {
    SparkUtils.createTempDir(root, namePrefix)
  }

  def getLocalDir(conf: SparkConf): String = {
    SparkUtils.getLocalDir(conf)
  }

  def postToListenerBus(event: SparkListenerEvent): Unit = {
    SparkSessionUtils.active.sparkContext.listenerBus.post(event)
  }

  def addShutdownHook(priority: Int)(hook: () => Unit): AnyRef = {
    ShutdownHookManager.addShutdownHook(priority)(hook)
  }

  def removeShutdownHook(ref: AnyRef): Boolean = {
    ShutdownHookManager.removeShutdownHook(ref)
  }

  def inShutdown(): Boolean = ShutdownHookManager.inShutdown()
}
